Second primary extracolonic cancers in Japanese hereditary nonpolyposis colorectal cancer.
We examined the occurrence of second primary extracolonic cancers in 1,170 patients with nonpolyposis colorectal cancer who underwent a resection between 1972 and 1994. Such cancers occurred more often in cases with hereditary nonpolyposis colorectal cancer (HNPCC) than in those without (11.1% vs. 3.6%, P=0.0286). Five HNPCC cases developed 6 cancers in the stomach, endometrium, ovary, and ureter. The mean interval between the first and second operation was 66 months (range: 18-153). These findings thus indicate the importance of targetted surveillance for any second primary cancers in the upper gastrointestinal, female genital, or upper urologic tract, especially in HNPCC patients.
Tomoda
H
H
Department of Gastroenterological Surgery, National Kyushu Cancer Center, Fukuoka, 815, Japan.
Baba
H
H
Taketomi
A
A
Kohnoe
S
S
Seo
Y
Y
Saito
T
T
D000328:Adult; D000368:Aged; D003110:Colonic Neoplasms / Q000473:pathology* / Q000601:surgery; D003123:Colorectal Neoplasms, Hereditary Nonpolyposis / Q000235:genetics / Q000473:pathology* / Q000601:surgery; D016889:Endometrial Neoplasms / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D016609:Neoplasms, Second Primary / Q000473:pathology*; D010051:Ovarian Neoplasms / Q000473:pathology* / Q000601:surgery; D012004:Rectal Neoplasms / Q000473:pathology* / Q000601:surgery; D012086:Reoperation; D013274:Stomach Neoplasms / Q000473:pathology* / Q000601:surgery; D014516:Ureteral Neoplasms / Q000473:pathology* / Q000601:surgery